“Nobody knows what to think,” said Mandy Malone, the man’s ex-girlfriend. “Nobody has ever heard of this before.”

Malone said she's disgusted by what her ex-boyfriend is accused of doing.

“He'd said it before but jokingly, just out of the blue, ‘I'm going to barbeque one of your dogs,’” she said.

This time it was no joke. Police said Salvador Martinez stabbed one of Malone’s dogs in the heart. Investigators said he skinned the puppy and cut up its meat. Malone found the remains of her beloved Onyx at her Edgewood home in the freezer.

“He had her marinating in Italian dressing in the fridge,” she said.

It’s legal in New Mexico to eat dog, but police said the way Martinez killed Onyx -- by stabbing her repeatedly with a screwdriver -- is a crime.

“What could possibly go through someone's mind to do something that sick?” asked Malone.

KOAT-DOT-COM. A NEW MEXICO MAN IS UNDER ARREST FOR GRUESOMELY KILLING A DOG -- IN ORDER TO EAT IT. IT HAPPENED IN EDGEWOOD, JUST EAST OF ALBUQUERQUE. KOAT ACTION 7 NEWS REPORTER LAURA THOREN SPOKE TO THAT MAN'S GIRLFRIEND... WHO WAS NEARLY SERVED HER OWN DOG. Nobody knows what to think - nobody has ever heard of this before! MANDY MALONE TELLS US SHE'S ABSOLUTELY DISGUSTED BY WHAT HER EX-BOYFRIEND IS ACCUSED OF DOING. "He'd said it before but jokingly. Just, out of the blue - I'm going to barbeque one of your dogs." THIS TIME - IT WAS NO JOKE. POLICE SAY SALVADOR MARTINEZ... STABBED ONE OF MALONE'S DOGS IN THE HEART -- THE TWIN OF THIS LITTLE GUY HERE. INVESTIGATORS THEN SAY HE SKINNED THE PUPPY - AND CUT UP ITS MEAT. MALONE FOUND THE REMAINS OF HER BELOVED "ONYX" AT HER EDGEWOOD HOME, IN THE FREEZER. "He had her marinating in Italian Dressing in the fridge. Laura: Italian Dressing? Mandy Italian Dressing." IT'S LEGAL IN NEW MEXICO TO EAT DOG. BUT POLICE SAY THE WAY MARTINEZ KILLED LITTLE ONYX - BY STABBING HER REPEATEDLY WITH A SCREWDRIVER - THAT'S A CRIME. What could possibly go through someone's mind to do something that sick? MARTINEZ IS FACING THE CHARGE EXTREME CRUELTY TO ANIMALS. MALONE - SAYS IF HE EVER GETS OUT, SHE'S NOT LETTING HIM NEAR HER OTHER DOGS, AND PUPPIES. IN EDGEWOOD LAURA THOREN KOAT ACTION 7 NEWS. INVESTIGATORS SAY MARTINEZ TOLD THEM HE NEEDED THE DOG'S MEAT TO FEED HIS EX-GIRLFRIEND'S FAMILY. MANDY MALONE SAYS THAT'S NOT TRUE... SHE HAD OTHER FOOD IN THE HOUSE. AN ALBUQUERQUE WIFE ALLEGEDLY TRIED